Playbooks
Mtn HB Angle Screen is a screen play out of Shotgun Doubles Y Off WK designed to get the halfback out into open space with blockers built in front of him. The offensive line and receivers set up a wall to spring the back after a delayed release, making this a strong answer to aggressive pass rushes and man pressure. The primary read is simply getting the ball to the HB on the angle release and letting the blocking convoy work, with the QB progressing to the halfback almost immediately after the play fake to sell the pass rush upfield.
Watch for defensive ends and interior linemen crashing hard upfield off the snap, since that penetration is exactly what the screen blockers are designed to funnel past. Key on linebacker depth and flow, if they bite on the run fake and flow toward the line of scrimmage the screen lane opens up immediately. Identify Cover 0 or man blitz packages pre-snap by checking for a single high safety or no safety help, these are the shells most vulnerable to this concept. Be alert for a spy or a user-controlled defender sitting near the line who reads the screen and jumps the throwing lane, since smart defenders can sniff this out and blow it up for a loss. Zone heavy shells like Cover 3 or Cover 4 with disciplined linebackers who sit and read the backfield can shut this down by staying in their drops and not overpursuing.
Call this play when you see pre-snap indicators of blitz such as walked up linebackers or safeties creeping into the box, since the delayed rush timing is exactly what screens exploit. Use it on early downs after establishing Mtn Inside Zone Split or Inside Zone Split so the defense respects the run fake and bites on the play action. Hot route the backside receivers into quick hitches or drags if you see man coverage sitting on the screen side to give yourself a second option against a disciplined defense. Pair this with HB Slow Screen and HB Slip Screen in your play-calling sequence to condition the defense into flowing hard, then counter with Mtn HB Swing or Y Lead Read Option to keep them honest. Avoid calling this on obvious short yardage downs where the defense sits back in zone, since screens thrive against pressure and struggle against disciplined zone drops that stay home.